公司与竞争者谁能获取更大的成功，取决于（） A.构建更为有效的市场营销系统 B.更好

阅读下面的短文，用括号内所给的适当形式填空，必要时可加助动词。

      Have you ever had problems in your life and don’t know how to be happy? If so, you will find “Being

a Happy Teenager” _1___ (write) by Australian writer, Andrew Matthews, useful.

     Andrew Matthews is a ___2___  (write), cartoonist and speaker. His books __3___ (translate) into

20 languages. He has been on over 2000 ___4___ (radio) and TV programs.

     In this book, Matthews tells us how___5____ (have) a happy life and answers the questions of

teenagers.

        There are many topics such as parents and friends, and the book says we should stop ___6___ (be)

angry and forgive. The book tells us about ___7____ (use) skills such as how to put what you have

learned into pictures of your mind to make your memory better. Many teenagers think that ____8___

(happy) comes from a good exam marks or praise form other people. But you can still be happy when

there are no such “good” things.

      _____9____ (succeed) comes from a good attitude. If you learn from ___10____ (problem), you

will have success in the future.

      Some school boys have problems such as being too tall or too short. But Matthews tells us happiness

comes from ___11___ (think) about things in positive way. 

      If you are tall, people notice you and you can get a better view at the movie; if you are short, your

clothes and shoes take ___12___ (little) room in your bedroom! This is Matthews’ most important

lesson: you choose to be happy!

男，42岁，搬运工，间歇性腰部疼痛2年，腰痛于冬、春季加重，常在休息保暖及服吲哚美辛后缓解，最近1周腰痛加剧，以致不能弯腰，步行困难，体查脊柱无明显畸形，各椎体无压痛，弯腰45°时左下肢牵扯性疼痛，腰椎X线片未见异常。

该患者的病史哪项应补充询问（）

A.腰部有无外伤史

B.服药剂量

C.服药疗程

D.有无长期负重

E.疼痛持续时间

患者女，57岁。因“反复心悸5年”入院。5年前，患者无明显诱因出现心悸，发作时急查血钾波动在3.0～3.5mmol／L之间，口服补钾治疗后，心悸可逐渐缓解，血钾可恢复正常。入院查体：体温36.6℃，脉搏80次／分，血压130／84mmHg，BMI28.4kg／m²。甲状腺不大，心肺腹（-），四肢肌力正常。

延长OGTT结果显示：患者在服糖后240分钟出现头昏、乏力、心悸、出汗，予以20ml20%葡萄糖静脉推注后好转。目前诊断考虑（）

A.低钾血症（钾从肾丢失）

B.低钾血症（钾从消化道丢失）

C.反应性低血糖

D.药物性低血糖

E.胰岛素瘤

F.自身免疫性低血糖

提取坏账准备金的企业，在计算企业所得税应纳税所得额时，实际发生的坏账损失大于已提取的坏账准备金的部分，不能在发生当期直接扣除。( )

诊断再生障碍性贫血最有意义的方法是（）

A.血常规检查

B.骨髓穿刺检查

C.CT检查

D.临床症状

E.骨髓活检